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Cushion|Natural|GIA

1.20ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 2556562088

Certificate GIA 2556562088

Diamond specifications and retailer prices

From £1,999 GBP
As of November 6, 2026
Save £2,410 GBP (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,758 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556562088. Listed at 19 retailers as of November 4, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556562088
Dimensions7.31 × 5.44 × 3.64 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cavity, Cloud, Indented Natural, Natural
Top View
7.31 mm5.44 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556562088
Side View
Table 68.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,758 GBP|Low: £1,979 GBP|High: £4,858 GBP|Avg: £2,999 GBP|+0.9%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 14£1,999 GBP
Retailer 2£2,069 GBP
Retailer 5£2,370 GBP
Retailer 12£2,435 GBP
Retailer 4£2,439 GBP
Retailer 7£2,564 GBP
Retailer 10£2,719 GBP
Retailer 3£2,752 GBP
Retailer 9£2,773 GBP
Retailer 6£2,835 GBP
Retailer 8£3,077 GBP
Retailer 11£3,226 GBP
Retailer 13£4,409 GBP
Queensmith£4,758 GBP

24 data points across 14 retailers

19 retailers£1,999 GBP to £4,409 GBP

A
Cheapest Retailer
-
£1,999 GBP
A
Retailer 2
-
£2,069 GBP
View
B+
Retailer 3
-
£2,370 GBP
View
B+
Retailer 4
-
£2,435 GBP
View
B+
Retailer 5
-
£2,439 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,541 GBP
View
B+
Retailer 7
-
£2,544 GBP
View
B+
Retailer 8
-
£2,564 GBP
View
B+
Retailer 9
-
£2,699 GBP
View
B+
Retailer 10
-
£2,719 GBP
View
Retailer 11
-
£2,743 GBP
View
Price last confirmed 22 days ago
B+
Retailer 12
-
£2,752 GBP
View
B+
Retailer 13
-
£2,773 GBP
View
B+
Retailer 14
-
£2,835 GBP
View
Retailer 15
-
£2,965 GBP
View
Price last confirmed 30 days ago
B+
Retailer 16
-
£3,077 GBP
View
B
Retailer 17
-
£3,226 GBP
View
B
Retailer 18
-
£4,409 GBP
View
Most Expensive
Queensmith
2556562088 · Oct 28
£4,758 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from £1,999 GBPSave up to £2,410 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.20ct Cushion
£1,999 GBP